60
3BA00044-00 • 2013-05-23 • Rev. 4
ersa DIGITAL 2000 A
No Tool
Fig. 16 shows what the display looks like when there is no
tool connected to the soldering station
Insufficient temperature
The temperature measured by the temperature sensor is
about cold junction temperature (approx. room tempera
-
ture). The character string is displayed (Fig. 17) until the
temperature of the sensor has risen sufficiently above cold
junction temperature.
6.
Error Diagnosis
and Troubleshooting
6.1
General Errors
If the soldering station does not operate as expected, check the following items:
• Is main voltage present? (Correctly connect the mains lead to the
device and socket.)
• Is the fuse defective? Note that a defective fuse may also indicate a
deeper cause of
error. Simply changing the fuse therefore
generally
does not suffice.
• Is the soldering iron correctly connected to the supply unit?
If the soldering tip does not become hot after the above items have been checked, you
can use an ohmmeter to check the heat resistance and the temperature sensor for con
-
duction (Figure 18).
Continuity check for
TECH TOOL
,
POWER TOOL und
X-TOOL
heating element
The continuity resistance between measuring points 1 and
6 should be between less than 6 Ohm (at cool soldering
iron). In the event of interruption, the heating element is
to be replaced (see left).
===-
Figure 16
Lo
Figure 17
Abbildung 18
Functional description/
Error Diagnosis
and Troubleshooting
